Question

How many moles of potassium ions and bromide ions in 0.25 moles of potassium bromide?

Answer 1

Answer:

1 moles of Kbr contains 1 mes of potassium ions (K+) and 1 mole if bromide ions (Br-). So there will be 0.25 moles of each ions.

Answer 2

Hi, please consider the answer given below

In the detrmination of the number of bromide ions in 0.2 mole of MgBr2

We use the avogadros number 6.02 x 10^23

Number of molecules of bromide ions= No. of moles x Avogadros number

Number of molecules of bromide ions= 0.2 x (6.02 x 10^23)

= this gives 1.2 x 10^23 bromide ions